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Finding the Fourth Proportional to 539,206.80, 809,712.48 and 517,751.52

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Solution

The fourth proportional to 539,206.80, 809,712.48 and 517,751.52 is: 777,493.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,206.80 : 809,712.48 = 517,751.52 : x
  2. Step 2: Convert to fraction form
    539,206.80/809,712.48 = 517,751.52/x
  3. Step 3: Cross multiply
    539,206.80x = 809,712.48 × 517,751.52
  4. Step 4: Simplify right side
    539,206.80x = 419,229,867,282.97
  5. Step 5: Solve for x
    x = 419,229,867,282.97/539,206.80
  6. Step 6: Final answer
    x = 777,493.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.